Page 423 - Planning and Design of Airports

No Ponding of Runoff

Drain Inlet Critical Contribution to
Standard Supply Curve No. ¥ DA Capacity System

Weighted Supply Curve (col. 18 + col. 5) Q d , ft. 3 /s (col. 21 ¥ col. 5) Q d , ft. 3 /s (col. 24 ¥ col. 5)

Unpaved Areas ft 3 /s/acre q d , ft 3 /s/acre
Paved t c , min t c , min
Areas Bare Turf Total q d
15 16 17 18 19 20 21 22 23 24 25
11.94 40.22 52.16 1.6 24 1.8 59.0 30 1.8 59.0
40 1.7 55.8
11.38 38.31 49.69 1.6 23 2.0 62.5 25 2.0 62.5
30 2.0 62.5
40 1.8 56.2
11.38 38.31 49.69 1.6 23 2.0 62.5 25 2.0 62.5
30 2.0 62.5
40 1.8 56.2

Assuming No Ponding of Runoff

Inflow into Underground Drains, ft /s, Corresponding to Adopted Value of t (col 10)
3
c
Inlet

2 Total
13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
59.0
121.5
56.2 168.2